* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #00cc66; 
            --secondary-color: #0066cc; 
            --dark-bg: #0a0a0a;
            --light-bg: #1a1a1a;
            --text-color: #f0f0f0;
            --accent-color: #ff9900;
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--text-color);
            background-color: var(--dark-bg);
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: rgba(10, 10, 10, 0.95);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--primary-color);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            color: var(--primary-color);
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 0 10px rgba(0, 204, 102, 0.5);
        }
        .my-logo:hover {
            color: var(--accent-color);
            text-shadow: 0 0 15px rgba(255, 153, 0, 0.7);
        }
        .nav-container {
            display: flex;
            align-items: center;
        }
        .main-nav {
            display: flex;
            gap: 25px;
        }
        .main-nav a {
            font-weight: 600;
            padding: 8px 15px;
            border-radius: var(--border-radius);
        }
        .main-nav a:hover {
            background-color: var(--light-bg);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary-color);
        }
        .breadcrumb {
            padding: 12px 0;
            background-color: var(--light-bg);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        main {
            padding: 30px 0;
            min-height: 100vh;
        }
        article {
            background-color: var(--light-bg);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }
        h1 {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            text-align: center;
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--secondary-color);
            margin: 30px 0 15px;
            padding-left: 10px;
            border-left: 5px solid var(--primary-color);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--accent-color);
            margin: 25px 0 12px;
        }
        h4 {
            font-size: 1.4rem;
            color: #ccc;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(0, 204, 102, 0.1);
            border-left: 4px solid var(--primary-color);
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .feature-box {
            background-color: rgba(0, 0, 0, 0.3);
            padding: 25px;
            border-radius: var(--border-radius);
            border: 1px solid #333;
        }
        .feature-box h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        input, textarea, select {
            padding: 12px;
            border-radius: var(--border-radius);
            border: 1px solid #444;
            background-color: #222;
            color: var(--text-color);
            font-size: 1rem;
        }
        button {
            padding: 12px 25px;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        button:hover {
            background-color: var(--accent-color);
            transform: translateY(-3px);
        }
        .stars {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: gold;
        }
        footer {
            background-color: #000;
            padding: 40px 0 20px;
            border-top: 2px solid var(--secondary-color);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        friend-link {
            display: block;
            padding: 10px;
            background-color: #111;
            border-radius: var(--border-radius);
            margin: 5px 0;
            border-left: 3px solid var(--primary-color);
        }
        friend-link a {
            color: #ddd;
        }
        friend-link a:hover {
            color: var(--accent-color);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #333;
            color: #888;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: -100%;
                flex-direction: column;
                background-color: var(--dark-bg);
                width: 100%;
                text-align: center;
                padding: 20px;
                gap: 15px;
                transition: var(--transition);
                border-top: 1px solid #333;
            }
            .main-nav.active {
                left: 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            article {
                padding: 20px;
            }
            .features {
                grid-template-columns: 1fr;
            }
        }